Added BoxArea destructor
Do not use source tree structure dependent paths
Move all xml-specific routines out from lanucher's code
Make it possible to use launcher routines directly
Revert 5c5c2f144f1a9684237315a96305e6a86592bdf5
Routines to cleanup engine to provide an ability to run multiple tasks within the same binary
API to turn off gmsh logging to console
Add src to include folders set
Add linker flags to allow easier gcm3d launch
A skeleton for gcm3d testing suite